Lyme Disease

Question 1

Lyme disease is endemic in what countries

Answer 1

North America and Europe

Question 2

Lyme disease is transmitted by ticks of the genus ___

Answer 2

Ixodes

Question 3

Larvae hatched from eggs 1st become infected with B. Burgdorferi by

Answer 3

Feeding on a natural reservoir for spirochetes

Question 4

MC reservoir for spirochetes

Answer 4

Small rodents, e.g. Mice and voles

Question 5

MC vectors for human Lyme disease

Answer 5

Ixodes nymphs

Question 6

Humans are at risk of becoming infected with B. burgdorferi when they enter tick habitats such as

Answer 6

Forests, shaded valleys, gardens, lawns, inner-city parks

Question 7

Preferred feeding location of ticks

Answer 7

1) Popliteal region
2) Thighs
3) Groin
4) Breasts
5) Axillae
6) Neck
7) Head

Question 8

T/F Ixodes tick bite is often painful

Answer 8

F, often goes unnoticed because it is typically painless

Question 9

MC organ systems affected by Lyme disease

Answer 9

1) MSK
2) Cutaneous
3) Neurologic
4) Cardiac

Question 10

Early skin lesions in Lyme disease

Answer 10

1) Erythema migrans
2) Borrelial lymphocytoma

Question 11

T/F The risk of developing Lyme disease after a tick bite is high

Answer 11

F, low, even if the tick is infected with B. burgdorferi

Question 12

Late skin manifestations of Lyme disease

Answer 12

Acrodermatitis chronica atrophicans

Question 13

Early neurologic manifestations of Lyme disease

Answer 13

1) CN palsy
2) Lymphocytic meningitis

Question 14

Late neurologic manifestation of Lyme disease

Answer 14

Chronic encephalomyelitis

Question 15

Early MSK manifestation of Lyme disease

Answer 15

Arthralgia

Question 16

Late MSK manifestation of Lyme disease

Answer 16

Arthritis

Question 17

T/F Cardiac manifestation of Lyme disease occurs late in the disease

Answer 17

F, early

Question 18

Early manifestations of Lyme disease become evident when

Answer 18

Within days to weeks after tick bite

Question 19

Late manifestations of Lyme disease become evident when

Answer 19

Months after tick bite

Question 20

T/F Early manifestations of Lyme disease are self-limiting

Answer 20

T

Question 21

T/F Late manifestations of Lyme disease rarely lead to irreversible damage of involved organs

Answer 21

T

Question 22

T/F In most patients with Lyme disease, only 1 organ system is affected

Answer 22

T

Question 23

Earliest sign of Lyme disease

Answer 23

Erythema migrans